They have Def fixed it. Now all my subs/reserves are yellow. Instead of deep red and my players if playing decent. Or winning in a champion league or cup game. Can even gain moral.. So I'm guessing if you don't do well in the league. Your players will have verylow morale. Not sure from what position in the league this effect occurs.
But it gives tankers who lose many games. Alot of moral issues. And bad moral players train bad right?